7
D-NE510/NE511/NE518CK
C704
L701
R725
C701
R826
C B E E B C
C899
R842
R836
R835
R822
R823
VDR803
R912
C898
R971
R840
R844
R843
R845
R819
R401
L406
L602
L603
L409
CN807
R608
R609
FB305
C614
R634
R604
C618
C630
C617
R635
R605
FB101
R603
R602
R622
R849
C608
C607
C605
R621
R623
C609
R626
C613
C624
R601
Q601
C615
D601
R610
R670
R711
C712
R723
C718
C717
C716
C811
R832
C813
C814
D803
Q801
D404
C414
C412
R409
R402
C603
D308
FB201
C301
R662
R626
R629
C614
R630
R627
C611
C601
R633
R632
C699
VDR612
C612
R625
R624
C318
R607
D301
R616 R615
R637
R312
R316
R663
R620
R814
R949
R897
R853
R619
R934
R935
R933
R877
R847
R617
R618
R850
R911
R699
R631
C632
VDR308
VDR306
VDR307
R908
R837 R820
R825
R827
R717
R718
R730
R719
C623
R640
C626
FB601
C602
R611
C696
R636
R640
R645
R614
C606
R706
FB701
R707
R731
X701
C711
IC701
C713
VDR609
VDR608
VDR603
VDR607
VDR606
VDR601
VDR806
SL805
VDR605 VDR604
VDR610
R715
13
1
31
60
30
1
1
716
32
33
48
64
49
1
120
61
90 91
14
26
R630
R639
R641
R642
R643
IC603
IC601
FB602
C697
C715
C628
R886
R816
R817
R846
C604 C627
R613
C620
R887
C896
IC801
C812
R811
R821
R828
R649
R716
C719
R726
TP711
TP713
TP716
TP727
TP951
TP729
TP730
TP715
TP712
TP714
C707
TP702
TP602
TP603
TP642
TP643
TP644
TP640
TP641
TP603
TP638
TP636
TP634
TP635
TP633
TP637
TP960
TP949
TP946 TP629
SL601TP630
TP631
TP347
TP301
TJ306
TP302
TP632
TP604
TP606
TP608
TP953
TP608
TP954
TP701
TP703
TP808
TP810
TP809
TP802
TP803
TP813
TJ801
(TEST)
TP620
TP617
TP615
TP621
TP831
TP648
TP821
TP646
TP652
TP914
TJ603
TP946
TJ201
TJ301
TJ101
TJ602
TP627
TP645
TP647
TP653
TP651
TP620
TP626
TP618
TP622
TP624
TP615
TP616 TP625
TP619
TP623
TJ601
SL602
TP818
TP805
EC B
SL803
SL802
SL801
C619
C631
L601
KAKA
C610
X601
TP612
TP952
C622
C621
1
25
26
50
51
75
76
100
TJ601 (RF)
— MAIN BOARD — (SIDE B)
RF level :
0.45
±
0.1 Vp-p
VOLT/DIV : 20 mV (10 : 1 probe in use)
TIME/DIV : 500 nS
SECTION 4
ELECTRICAL ADJUSTMENTS
CD section adjustments are done automatically in this set.
In case of operation check, confirm that focus bias.
4-1. FOCUS BIAS CHECK
1. Connect the oscilloscope between TJ601 (RF) and GND on
main board.
2. Insert the disc (YEDS-18). (Part No. : 3-702-101-01)
3. Press the
N
X
button.
4. Confirm that the oscilloscope waveform is as shown in the
figure below. (eye pattern)
A good eye pattern means that the diamond shape ( ) in the
center of the waveform can be clearly distinguished.
• RF signal reference waveform (eye pattern)
Test Points:
When observing the eye pattern, set the oscilloscope for AC range
and raise vertical sensitivity.
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